Finding the Fourth Proportional to 86,161.49, 129,242.29 and 27,001.79
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Solution
The fourth proportional to 86,161.49, 129,242.29 and 27,001.79 is: 40,502.70
Step by Step Solution
- Step 1: Write the proportion equation
86,161.49 : 129,242.29 = 27,001.79 : x - Step 2: Convert to fraction form
86,161.49/129,242.29 = 27,001.79/x - Step 3: Cross multiply
86,161.49x = 129,242.29 × 27,001.79 - Step 4: Simplify right side
86,161.49x = 3,489,773,173.70 - Step 5: Solve for x
x = 3,489,773,173.70/86,161.49 - Step 6: Final answer
x = 40,502.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.